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Problems
#
Name
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x46731
327A
Flipping Game
brute force
,
dp
,
implementation
1200
x40104
433B
Kuriyama Mirai's Stones
dp
,
implementation
,
sortings
1200
x36531
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x36456
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x29212
1097B
Petr and a Combination Lock
bitmasks
,
brute force
,
dp
1200
x26742
1472D
Even-Odd Game
dp
,
games
,
greedy
,
sortings
1200
x26129
1272C
Yet Another Broken Keyboard
combinatorics
,
dp
,
implementation
1200
x25214
1355B
Young Explorers
dp
,
greedy
,
sortings
1200
x24907
1926C
Vlad and a Sum of Sum of Digits
dp
,
implementation
1200
x23425
1406B
Maximum Product
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x22076
1598C
Delete Two Elements
data structures
,
dp
,
implementation
,
math
,
two pointers
1200
x20103
961B
Lecture Sleep
data structures
,
dp
,
implementation
,
two pointers
1200
x19316
1914D
Three Activities
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x18357
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x18001
1553C
Penalty
bitmasks
,
brute force
,
dp
,
greedy
1200
x17346
1843D
Apple Tree
combinatorics
,
dfs and similar
,
dp
,
math
,
trees
1200
x17089
1713C
Build Permutation
constructive algorithms
,
dp
,
math
1200
x16853
1934B
Yet Another Coin Problem
brute force
,
dp
,
greedy
,
math
1200
x16799
1941D
Rudolf and the Ball Game
dfs and similar
,
dp
,
implementation
1200
x16726
1485B
Replace and Keep Sorted
dp
,
implementation
,
math
1200
x16697
1029B
Creating the Contest
dp
,
greedy
,
math
1200
x16425
1859C
Another Permutation Problem
brute force
,
dp
,
greedy
,
math
1200
x16362
522A
Reposts
*special problem
,
dfs and similar
,
dp
,
graphs
,
trees
1200
x15739
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x15250
1200B
Block Adventure
dp
,
greedy
1200
x13747
1245B
Restricted RPS
constructive algorithms
,
dp
,
greedy
1200
x13450
998B
Cutting
dp
,
greedy
,
sortings
1200
x12775
1140D
Minimum Triangulation
dp
,
greedy
,
math
1200
x12378
729B
Spotlights
dp
,
implementation
1200
x7746
1769C1
Подкрутка I
*special problem
,
brute force
,
dp
,
greedy
1200
x932
189A
Cut Ribbon
brute force
,
dp
1300
x62953
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x29130
1360E
Polygon
dp
,
graphs
,
implementation
,
shortest paths
1300
x24466
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x21317
1285B
Just Eat It!
dp
,
greedy
,
implementation
1300
x21111
1555C
Coin Rows
brute force
,
constructive algorithms
,
dp
,
implementation
1300
x20933
1660C
Get an Even String
dp
,
greedy
,
strings
1300
x18812
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x18448
1037C
Equalize
dp
,
greedy
,
strings
1300
x18344
1618D
Array and Operations
dp
,
greedy
,
math
1300
x18330
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x18313
1466C
Canine poetry
dp
,
greedy
,
strings
1300
x17330
1420C1
Pokémon Army (easy version)
constructive algorithms
,
dp
,
greedy
1300
x17041
1661B
Getting Zero
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
shortest paths
1300
x17033
1443B
Saving the City
dp
,
greedy
,
math
,
sortings
1300
x15511
1879C
Make it Alternating
combinatorics
,
dp
,
greedy
1300
x15030
1844C
Particles
dp
,
greedy
,
implementation
,
math
1300
x14887
1948C
Arrow Path
brute force
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
shortest paths
1300
x14590
1753A1
Make Nonzero Sum (easy version)
constructive algorithms
,
dp
,
greedy
1300
x14338
1676G
White-Black Balanced Subtrees
dfs and similar
,
dp
,
graphs
,
trees
1300
x14280
1178B
WOW Factor
dp
,
strings
1300
x14055
1459B
Move and Turn
dp
,
math
1300
x13962
1176C
Lose it!
dp
,
greedy
,
implementation
1300
x13872
1553B
Reverse String
brute force
,
dp
,
hashing
,
implementation
,
strings
1300
x13843
1937B
Binary Path
dp
,
greedy
,
implementation
1300
x13218
1766C
Hamiltonian Wall
dp
,
implementation
1300
x13143
1534C
Little Alawn's Puzzle
combinatorics
,
dp
,
dsu
,
graphs
,
math
1300
x12519
1945D
Seraphim the Owl
dp
,
greedy
1300
x12303
1774C
Ice and Fire
constructive algorithms
,
dp
,
greedy
1300
x11584
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x10770
1900C
Anji's Binary Tree
dfs and similar
,
dp
,
trees
1300
x10498
628B
New Skateboard
dp
1300
x10338
777B
Game of Credit Cards
data structures
,
dp
,
greedy
,
sortings
1300
x9351
665C
Simple Strings
dp
,
greedy
,
strings
1300
x9239
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x8965
870C
Maximum splitting
dp
,
greedy
,
math
,
number theory
1300
x8964
416B
Art Union
brute force
,
dp
,
implementation
1300
x8533
798B
Mike and strings
brute force
,
dp
,
strings
1300
x8273
1040B
Shashlik Cooking
dp
,
greedy
,
math
1300
x7015
626B
Cards
constructive algorithms
,
dp
,
math
1300
x6524
234C
Weather
dp
,
implementation
1300
x5342
653B
Bear and Compressing
brute force
,
dfs and similar
,
dp
,
strings
1300
x4893
1769C2
Подкрутка II
*special problem
,
dp
1300
x916
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44634
1526B
I Hate 1111
dp
,
math
,
number theory
1400
x28847
698A
Vacations
dp
1400
x28571
1195C
Basketball Exercise
dp
1400
x24160
414B
Mashmokh and ACM
combinatorics
,
dp
,
number theory
1400
x20930
1350B
Orac and Models
dp
,
math
,
number theory
1400
x20667
1380C
Create The Teams
brute force
,
dp
,
greedy
,
implementation
,
sortings
1400
x19934
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x17632
1919C
Grouping Increases
data structures
,
dp
,
greedy
1400
x16918
1245C
Constanze's Machine
dp
1400
x16808
289B
Polo the Penguin and Matrix
brute force
,
dp
,
implementation
,
sortings
,
ternary search
1400
x16778
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x16118
1692G
2^Sort
data structures
,
dp
,
sortings
,
two pointers
1400
x16054
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x15496
1451C
String Equality
dp
,
greedy
,
hashing
,
implementation
,
strings
1400
x15224
1108D
Diverse Garland
constructive algorithms
,
dp
,
greedy
1400
x14715
1706C
Qpwoeirut And The City
dp
,
flows
,
greedy
,
implementation
1400
x14464
1644C
Increase Subarray Sums
brute force
,
dp
,
greedy
,
implementation
1400
x13397
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13382
987C
Three displays
brute force
,
dp
,
implementation
1400
x13116
1771B
Hossam and Friends
binary search
,
constructive algorithms
,
dp
,
two pointers
1400
x12925
1830A
Copil Copac Draws Trees
dfs and similar
,
dp
,
graphs
,
trees
1400
x12512
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12490
1461B
Find the Spruce
brute force
,
dp
,
implementation
1400
x12366
1847C
Vampiric Powers, anyone?
bitmasks
,
brute force
,
dp
,
greedy
1400
x12255
505B
Mr. Kitayuta's Colorful Graph
dfs and similar
,
dp
,
dsu
,
graphs
1400
x12112
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Codeforces Round 946 (Div. 3)
15:11:46
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dp
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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